Copenhagen weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: May – September
What is the weather like in Copenhagen in August?
In August, Copenhagen is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 18.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 81 mm in total. All in all, August is a good month for a holiday in Copenhagen.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 77 | 75 | 73 |
| Day | 21° | 21° | 17° |
| Night | 14° | 15° | 12° |
| Sea | 17° | 18° | 16° |
| Sun | 8 h | 7 h | 6 h |
| Rain days | 13 | 13 | 10 |
More details for August
- Daylight
- 15 h 9 min05:40 – 20:49
- UV index
- 5 · moderateclear sky, noon (estimate)
- Muggy days
- 1 daydew point 18 °C or more
- Wind
- 20 km/haverage daily peak
- Cloud cover
- 60 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Copenhagen
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %68 %
- Few rainy daysweight 30 %38 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Copenhagen in August: quick answers
Is Copenhagen hot in August?
No. In August, Copenhagen is mild: daytime highs average 21 °C and nights drop to about 15 °C.
Can you swim in Copenhagen in August?
Only if you don't mind cold water: in August the sea averages just 18.0 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Copenhagen in August?
Rain is frequent, with about 13 rainy days and 81 mm in total.
Copenhagen month by month
The whole year in CopenhagenAll destinations: Denmark
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)